Finding the Fourth Proportional to 766,269.30, 1,149,404.16 and 316,495.82

Step by Step Solution

1. Step 1: Write the proportion equation
   766,269.30 : 1,149,404.16 = 316,495.82 : x
2. Step 2: Convert to fraction form
   766,269.30/1,149,404.16 = 316,495.82/x
3. Step 3: Cross multiply
   766,269.30x = 1,149,404.16 × 316,495.82
4. Step 4: Simplify right side
   766,269.30x = 363,781,612,130.61
5. Step 5: Solve for x
   x = 363,781,612,130.61/766,269.30
6. Step 6: Final answer
   x = 474,743.82